(PhysOrg.com) -- The solar system does not end abruptly past the planets. Beyond the orbit of Neptune, the outermost planet (it orbits the sun at a distance of 30 AU, where one AU is the average distance of the earth from ...
Astronomy
May 7, 2010
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"Standard orbit, Mr. Sulu." Captain Kirk barks out the order with such confidence. He knows the USS Enterprise can slip in and out of planetary orbits with ease. But it's only easy in the realm of science fiction. In the ...
Space Exploration
May 5, 2010
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(AP) -- Scientists say an apparent fragment from a meteor that lit up Midwestern skies this week has been recovered in southwestern Wisconsin.
Space Exploration
Apr 17, 2010
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(PhysOrg.com) -- A rooftop webcam at the University of Wisconsin-Madison captured the final seconds of a fireball's Wednesday, April 14 descent into the atmosphere. A fireball is a meteor, or "shooting star," that emits a ...
Space Exploration
Apr 16, 2010
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Imagine you're a Brontosaurus with your face in a prehistoric tree top, munching on fresh leaves. Your relatives have ruled planet Earth for more than 150 million years. Huge and strong, you feel invincible.
Space Exploration
Mar 29, 2010
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(PhysOrg.com) -- The most prominent asteroid in the sky is currently yours for the perusing with binoculars -- and perhaps even the naked eye.
Space Exploration
Feb 17, 2010
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(PhysOrg.com) -- NASA's Hubble Space Telescope has imaged a mysterious X-shaped debris pattern and trailing streamers of dust that suggest a head-on collision between two asteroids. Astronomers have long thought that the ...
Astronomy
Feb 2, 2010
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(PhysOrg.com) -- For decades, astronomers have analyzed the impact that asteroids could have on Earth. New research by MIT Professor of Planetary Science Richard Binzel examines the opposite scenario: that Earth has considerable ...
Space Exploration
Jan 20, 2010
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(PhysOrg.com) -- About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet out to Mars in our ...
Astronomy
Dec 15, 2009
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(PhysOrg.com) -- NASA's Dawn spacecraft re-entered our solar system's asteroid belt today, Nov. 13, and this time it will stay there.
Space Exploration
Nov 16, 2009
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